baber/WOPTO huggingface dataset:
Patent GB-382997-A (GB)
Title: Improvements in photographic film packs
IPC: G03B17/34
Filed: 1931-09-19
Abstract: 382,997. Photographic film packs. RICH, H. C., Barsham House, Bedford. Sept. 19, 1931, No. 26259. [Class 98 (i).] In a film pack for tabbedfilms e with a two-part casing a, b and a central partition c round the end of which the films are drawn after exposure, the rear part b is formed with an aperture b<4> for withdrawing exposed films as required and is fitted with an internal slide having a protruding manipulating tab f<1> which serves to open and close the aperture as required. The slide has side flanges sliding on the inner sides of the casing, and also a velvet strip f<2> which comes opposite a corresponding strip c<4> on the central partition plate c when the aperture b<4> is closed and the pack is in use. The strip c<4> is held on the partition plate c by a metal strip having projecting lugs forming shoulder stops for the films. The partition plate c has a bent-over end c<2> forming a positioning stop for the unexposed pack e, and its free end c<3> is engaged by the hooked end d<2> of the spring d<1> on the pressure plate d.
Patent GB-956199-A (GB)
Title: Improvements in lamp shades
IPC: F21V1/00
Filed: 1962-07-09
Abstract: 956,199. Ornamenting. D. DUNCAN, and P. J. PRICE. Nov. 6, 1962 [July 9, 1962], No. 26300/62. Heading B6G. [Also in Division F4] A lampshade is composed of seni-transparent plastics material having slots or holes in which transparent plastic inserts are held, the inserts being formed with peripheral grooves for entry of the edges of the slots or holes, so that part of the insert lies outside and part within the shade, the part inside being narrower or of smaller area than the part outside so that the insert can be sprung into position from the exterior of the shade without being forced completely through. In the form shown, the surface of the shade 1 is provided with slots 3 into which diamondshaped inserts 4 are fitted, the inserts having grooved edges 5 engaging the edges of the slots. The outer part 7 is larger than the inner part 6. The inserts may be star-shaped or elongated and may be curved to conform to the shape of the shade. Alternatively, inserts in the form of an object may be used, the holes to receive them being of generally similar outline. The walls of the shade may be corrugated to increase the light diffusion.
Patent GB-243690-A (GB)
Title: Improvements in or relating to talking motion picture photography
IPC: G03B31/00
Filed: 1925-10-21
Abstract: 243,690. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). Nov. 29, 1924, [Convention date]. Combined working of phonographs with kinematographs. - Differently - placed synchronously-driven cameras are used tc enable a continuous record from a plurality of view points to be made without interrupting the action in the scene being photographed; one or more of the cameras is provided with means for photographically recording sounds. As shown, cameras 1, 2 are each provided with a motor 5, 6, the motors being synchronously driven by current from a generator 9 driven by a motor 10. Known sound-recording means 11, 12, 14 is provided in connection with the camera 1, and one of the cameras may be located near to the scene or be provided with a " close-up " lens. The positive film printed from the negatives may contain selected picture portions from any of the negatives, and a continuous sound record from one of the negatives. Alternatively, when it is desired to vary the volume of the sound in accordance with the point of view, the sound record may be printed from different negatives.
Patent GB-754511-A (GB)
Title: Improvements in or relating to a device for internal gauging
IPC: B24B49/00
Filed: 1954-09-13
Abstract: 754,511. Bore gauges. REGIE NATIONALE DES USINES RENAULT. Sept. 13, 1954 [Nov. 27, 1953], No. 26445/54. Class 106 (2). [Also in Group XXIII] A device for gauging cylindrical bores during machining comprises a longitudinally split cylinder, part of which is resiliently connected to a support for the device enabling the diameter of the cylinder to be slightly reduced for introduction into a bore, the cylinder carrying feeler elements which contact the bore. The invention is described as applied to a cylinder internal grinder, the device being mounted on a shaft 9 for swinging into line with the workpiece 1. As the grinding wheel 4 is withdrawn prior to making the final cut, the cylinder 25 is introduced into the bore. The bore is now ground to its final size by the wheel 4 operating through the gap in the cylinder. The cylinder contacts the bore through feelers 26, 27 and as the bore diameter increases, expands, operating a known device 23 connected by a lead 24 either to an indicator (not shown) or to means for stopping the machine when the desired bore diameter is reached (also not shown). An alternative embodiment is described in which the cylinder 25 is in two parts and has an annulus secured to the end first entering the workpiece, the annulus being weakened along a chord to permit relative bending of the ports, one part being joined to the cylinder support 8 by a weakened element such as 31 and the other being rigid with the support.
Patent GB-1011100-A (GB)
Title: Improvements in or relating to fuel injectors for internal combustion engines
Inventor: MAY CLAUDE HECTOR
IPC: F02M67/02
Filed: 1962-07-10
Abstract: 1,011,100. Fuel injectors. WALKER MANUFACTURING CO. July 10, 1962, No. 26519/62. Heading FIB. Fuel is injected through a nozzle 50, Fig. 1, by air compressed to a temperature above ignition temperature in an air pump compression space 58 so that the fuel ignites during injection. The injector comprises a fuel pump plunger 118 and an air pump plunger 40. The plunger 40 is driven upwards by the engine cylinder pressure on the compression stroke to compress the injection air in space 58 and also compresses air in the space 20 when ports 31 are closed. Near the upper end of the plunger stroke the pressure in space 20 forces down the fuel pump plunger 118 to inject the metered charge of fuel for the next cycle through tube 144 to a space around a vlave 150 which remains closed due to the pressure in space 58. As plunger 40 nears top dead centre, the pressure in space 58 opens a Venturi shaped spring valve 78 and a charge of fuel stored in space 52 is forced through nozzle 50 with the compressed air and ignited thereby before it reaches the combustion space. When the plunger 40 is returned by spring 48, the reduction in pressure in space 58 permits valve 150 to open and the fuel stored therearound flows into the space 52 for the next injection. The return of plunger 40 is cushioned by air trapped below the flange 44. The fuel pump 118 has inlet and outlet valves 116, 134, and its stroke is controlled by adjustment of a screwed abutment 96 by a lever 100.
Patent GB-172436-A (GB)
Title: Improvements in and relating to electric power limiting systems
IPC: H02J3/46
Filed: 1920-09-17
Abstract: 172,436. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 17, 1920. Regulation, automatic systems and apparatus for; systems depending on the use of two or more machines.- An electric distribution system comprises two or more sources of power supplying loads capable of operating regeneratively, a power limiting system associated with each source and controlled by the total demand on all the sources, to vary the voltages of the sources, means for lowering the excitation of the heaviest loaded sources first, and means for rendering inoperative the voltage-lowering means of a source when this source is receiving power from the circuit. The generators 22 of motor-generators 20 are connected to bus-bars 30, 31 connected to the trolly or third rail of a traction system and to the track rails through connections 33, 32 respectively. Each motor 20 drives an exciter 25 and an auxiliary generator 26. A reverse current relay 68 is inserted in the connection 32 and controls in part the connection of a reversible motor 60<a> to leads supplied by the generator 26. A pilot-wire circuit 55, supplied from a constant-potential generator 70, contains the coil 51 of an ammeter relay 50 and a resistance 40 varied automatically by a wattmeter having a current winding 42 placed across a shunt resistance 44 and a voltage coil 41 connected across a shunt resistance 43. The circuit of the field winding 62 of the motor 60<a> is in part closed through a relay 65 the winding of which is placed across a portion of the shunt resistance 44. When the two or more sets of generators 22 are supplying energy to the busbars 30, 31 the current in the pilot circuit 55 is a measure of the energy supplied as the ammeters operate to vary the resistances 40 in the pilot circuit 55. When the energy supplied reaches a predetermined value the ammeters 50 operate to connect the field windings 62 of the motors 60<a> to the leads of the auxiliary generator 26, provided that the current supplied by the generators 22 is sufficient to close the contacts 66 of the relay 65, and the voltage of the generators 22 is lowered. If, however, one of the sources is receiving regenerated energy from the load, the relay 68 associated with this source operates to disconnect one of the leads of the generator 26 from the movable contact of the ammeter 50 and closes the field winding 61 of the motor 60<a> to raise the potential of the generators 22 forming the source.
Patent GB-900213-A (GB)
Title: Improvements in or relating to the heat treatment of refractory workpieces in shaft kilns
IPC: F27B1/00
Filed: 1958-08-19
Abstract: 900,213. Kilns for firing ceramics. KOPPERS G.m.b.H., HEINRICH. Aug. 19, 1958 [Sept. 26, 1957], No. 26655/58. Class 51 (2). A tower kiln 1 for firing ceramic tubes or rods 4 suspended from the roof 5 comprises a muffle 3 heated by burners 10 and a refractory plate 7 formed with Venturi openings 8 by which gases passing from the combustion chamber 2 are evenly distributed over the tubes &c. on their way to a flue 6. In a modification, Fig. 2 (not shown), the muffle is omitted, the burners 10 heat the ware directly, and a combustion chamber is provided below the plate 7.
Patent GB-1066563-A (GB)
Title: Improvements in or relating to apparatus for the ionisation of a gas to be analysed
IPC: G01N21/68
Filed: 1965-06-23
Abstract: 1,066,563. Discharge apparatus. SOC. ANON. L'AIR LIQUIDE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. June 23, 1965 [June 23, 1964], No. 26677/65. Heading H1D. A discharge tube provided with a gas inlet and outlet has a pair of external electrodes, and is constructed of insulating material, such that gas flowing through the tube, for analysis by optical or electrical examination of the discharge produced therein, does not contact any electrically conductive material. Glass or silica discs (4), (6), (Fig. 1, not shown), are sealed together around their periphery by a PTFE ring (8), to form the discharge chamber, which is provided with gas entry and exit pipes (10, 12). Metal disc (18), spring-urged against disc (4) to allow expansion, constitutes one electrode, the other being formed by a sodium chloride solution (27) held between the disc (6) and a further glass plate 28 to which it is peripherally sealed by a metal ring (30) which acts as the lead and also supports a tube (36) through which coolant is circulated. Insulating oil coolant is also circulated around the electrode (18) via tubes (54) and (58). Leads (30 and 26) are connected across an H.F. generator, and photo-electric cells are disposed around the tube to measure the radiation emitted by the discharge. In a further embodiment (Fig. 2, not shown), the discharge tube is in the form of a cylinder (62) through which the gas flows, the electrodes (80, 82) being in the form of wire coils mounted on and axially spaced apart along the cylinder, a transparent end-plate (90) permitting observation of the discharge.
Patent GB-712099-A (GB)
Title: Improvements in or relating to lighting systems for vehicles
IPC: B60R16/03
Filed: 1950-11-02
Abstract: 712,099. Valve generating circuits. DRIES, R. L. Nov. 2, 1951 [Nov. 2, 1950], No. 26758/50. Class 40 (6). [Also in Group XXXV] An oscillatory circuit for feeding H.F. current to a discharge lamp 34 comprises a variable condenser 24 in parallel with the primary winding 19 of a static transformer 20, the combination being connected through another variable condenser 25 to the anode 21 and grid 22 of a valve 23, and the supply of H.T. current, being connected to the cathode of the valve and, through a H.F choke 18 to one end of the parallel combination. Condenser 25 is to vary the H.F. grid current, and the choke 18 and a further choke 27 connected directly to the grid 22 prevent dissipation of the H.F. current in the H.T. circuit. The valve 23 may be of almost any multi-electrode type.
Patent GB-1467876-A (GB)
Title: Electric build-up welding
IPC: B23K35/36
Filed: 1974-06-17
Abstract: 1467876 Welding by fusion JAPAN STEEL WORKS Ltd 17 June 1974 [19 June 1973] 26778/74 Heading B3R Build-up deposition, e.g. of stainless steel, on a mild or low alloy steel base, is effected by the electro-slag process using a strip electrode 3 which is traversed over the base in the direction of its thickness and fed lengthwise into the pool of molten electro-conductive flux 4 to form droplets 5. The molten flux (e.g. 5-15 mm. depth) is initially created from a pre-distributed layer of powdered flux 1 (e.g. 15-50 mm. depth) by electrode/base arc and is thereafter maintained by resistance heating in said molten flux. Suitable current densities in respect of electrode cross-section and electrode width are 7-60 A/mm.<SP>2</SP> and 10-23 A/mm. respectively. Suitable electrode width and thickness ranges are 0À4-3 mm. and 25-300 mm. respectively. The flux powder may be prepared by melting a mixture comprising, by weight, 64% calcium fluoride, 17% alumina, 5% iron oxide, 4% silica, 3% manganese oxide, 5% chromium oxide and 2% zirconium oxide, solidifying this melt and then grinding the solid to a powder.
Patent GB-876085-A (GB)
Title: Improvements in or relating to members for use in the construction of structural framework
Inventor: GRABOWSKI EDWARD WITOLD
IPC: A47B96/14
Filed: 1956-09-03
Abstract: 876,085. Constructional metalwork. METRIFRAME STRUCTURES Ltd. Sept. 3, 1957 [Sept. 3, 1956], No. 26890/56. Class 20(2) An angle member, Fig. 2, is provided with one row B-B of circular holes 4 in one flange 2 and at least two rows C-C, D-D in the other flange 3, the distances between the rows B-B and C-C and the edge 5 being the same as that between the rows C-C, D-D and optional row E-E. In a channel member, Fig. 3, there are one row in each flange 2 and three rows in the web 3 and in an open box member, Fig. 7, there are two rows in each flange 2, three or four rows in the web 3 and one row in each flange extension 13. In the row B-B in a flange 2, smaller and larger holes are arranged alternately, while in the other flange or web, the holes in alternate rows are of the smaller or larger size 6, 7 respectively. The spacing of the holes 7 in row D-D is double and that of the holes 9 in row E-E is four times that of the spacing in rows B-B and C-C, and the holes in row E-E are out of alignment with those in row D-D. The holes in rows C-C may also be double-spaced. Connecting strips or angle members may be provided with one row of alternately smaller and larger holes in the strip or each flange and the spacing may be the same as #2 times that in row B-B.
Patent GB-1286777-A (GB)
Title: Flexible continuous power transmission means
Inventor: DOORNE HUBERTUS JOSEPHUS VAN
IPC: F16G5/16
Filed: 1971-04-19
Abstract: 1286777 Belt gearing H J VAN DOORNE 19 April 1971 [13 April 1970] 26908/71 Heading F2Q A V-belt comprises four superimposed steel strips 4, 5, 6, 7 which are embraced by a plurality of V-shaped steel blocks 9 which extend around the total circumference of the strips and are able to shift in the longitudinal direction with respect to the strips. The blocks 9 have lateral guides 10, 11 having top edges 12, 13 extending over the strips. The blocks 9 are bevelled on one side 14, or both sides, transversely to the direction of movement so that they can tilt with respect to each other when they are entrained around a pulley. The blocks 9 have rounded surfaces 8 where they contact the strip 7.
Patent GB-461825-A (GB)
Title: Improvements in or relating to the production of artificial fibres and the like
IPC: D01F2/22
Filed: 1935-09-30
Abstract: In a process for the production by dryspinning of artificial fibres, threads, bands or horsehair from viscose, a cold or warm current of air or gas is introduced into the spinning chamber to flow in the same or opposite direction to that of spinning, the resulting products being stretched before or during the regeneration of the cellulose.  In addition, if desired, the spinning solution may be heated before discharge.  The fibres may be cut to a desired length of staple before regeneration, satisfactory crimped staple fibre being thereby obtained. Admixture may be incorporated in the viscose to deluster the products or to produce by their subsequent removal, hollow spaces therein.  In addition to known substances for this purpose, starch, glue, gelatine, agar-agar or mucilage, e.g. carragheen may be employed.  A small amount of admixture will produce a very fine honeycomb structure.  Oils or starch solutions may also be introduced into the viscose or powdery and fibrous materials especially sharp-edged substances such as keiselguhr to produce fibres with a rough uneven surface.  To produce crimped fibres, artificial resins or resin forming substances are added to the viscose, the resins being hardened physically or chemically during or after shaping.  The formed threads are passed between grooved crimping rollers which may be cold or heated and which may rotate in or be irrigated with precipitating liquid so that the product is simultaneously coagulated and stretched as it enters the teeth of the grooved rollers.  Gases such as carbon-dioxide or sulphur-dioxide, or acetic acid vapour may also be used for regeneration, the gases being heated if desired.  Crimping may if desired follow regeneration.
Patent GB-780785-A (GB)
Title: Electrolytic cell
IPC: C25C3/26
Filed: 1955-09-22
Abstract: 780,785. Fused-electrolyte cells. NORTON GRINDING WHEEL CO., Ltd. Sept. 22, 1955 [Oct. 12, 1954], No. 27059/55. Class 41. An apparatus for extracting metal (or boron) from the carbide thereof comprises a gas-tight cell 1, e.g. lined with a graphite cup 51, for containing a molten electrolyte, e.g. a eutectic mixture of lithium chloride and potassium chloride, an anode, e.g. a cup 50, of the metal carbide immersed in the electrolyte, the metal being chosen from the group consisting of titanium, vanadium, chromium, zirconium, niobium, molybdenum, hafnium, tantalum, tungsten and boron, a cathode 18, preferably of the metal being extracted, immersed in the electrolyte, means for maintaining an inert atmosphere in the cell 1, and means for heating the electrolyte, e.g. an electric resistance 38 wound on a cylinder 36 of sintered. alumina and cemented at 40. The cell 1 has a head 3 to which is secured a head 5, a sealing ring 13 intervening, cooling water being passed through the heads 3, 5 between pipes 8, 9 by a rubber tube 12. An inert gas, e.g. argon, is passed into the cell 1 between pipes 24, one of which includes a needle valve to maintain pressure in the cell 1 at 1 to 2 inches of mercury. The cathode 18, which may be hollow and contain a thermocouple 19, 20, is adjustably supported on a screw stud 57 by a clamp 55, and enters the cell 1 in a gas-tight manner by means of an insulating bushing 17, a ring 21 and rubber tubing 22 sealing the openings between the bushing 17 and the exterior of the cell. Electrical connection to the cathode 18 and anode 50 is at 26 and 27 respectively, and the anode may be replaced by removing a plug 63 in a drain 2 in the cell 1 and forcing the cups 50, 51 upwardly, the head 5 being previously removed. A steel cylinder encloses the cell 1 and heating element 36, 38, 40 and is insulated therefrom by fuller's earth 41. Instead of a cup anode, four separate vertical plate anodes arranged at right angles may be employed, each standing clear of the graphite cup, and four rod cathodes may be employed with this arrangement. In all arrangements, the anode should be large enough to enclose at least 80 per cent of the unmasked area of the cathode, that is the area which is not shielded in a direction normal to its surface by another cathode area. Various examples employing a titanium carbide anode are described. The anode cup is filled with electrolyte, the apparatus assembled, the electrolyte heated, e.g. to 900 ‹C. to 1000‹ C., and water and argon supplied to the cell. The current is then applied, e.g. at 3.4 volts, to provide a cathode current density of 164 amps. per square decimetre. A current density of 246 amps. per square decimeter, is mentioned. The electrolyte may be any halide of an alkali metal or of an alkaline earth metal or of a mixture thereof.
Patent GB-779993-A (GB)
Title: Improvements in and relating to tobacco pipe and like rests
IPC: A24F9/14
Filed: 1954-08-12
Abstract: 779,993. Tobacco-pipe rests. WALLER, W. M. and WALLER, P. H. Aug. 12, 1954, No. 27205/56. Divided out of 779,992. Class 130 [Also in Group XIV] Units 3, adapted to support tobacco pipes in elongated apertures or recesses 4 of varying width have co-acting sides 8 shaped to form together further pipe-supporting apertures or recesses axially staggered with respect to the first apertures or recesses 4 to have a wider part 5 located between narrower parts thereof. The apertures or recesses are preferably formed as described in Specification 779,992 and the units may have extensions 14 and 15 for wall hanging and be assembled together by spigot-andsocket joints 9, 10 or by clips.
Patent GB-829462-A (GB)
Title: Improvements in or relating to a device for the external control of members contained in an hermetically sealed box under external pressure
IPC: H01H9/04
Filed: 1957-08-29
Abstract: 829,462. Clockwork actuation of switches; switch cases. PANERAI, G., and PANERAI, M. Aug. 29, 1957 [Nov. 2, 1956], No. 27210/57. Class 38 (5). Each end of a switch actuating stem 2 is in contact with flexible membranes 3, 4 which hermetically seal the box 1 so that the stem is not displaced by pressure of the medium surrounding the box. As shown, a number of stems 2 are arcuately arranged within a cylindrical box 1. To actuate the switch, a knob 8 is rotated until a pin 7 on the knob is positioned above the required stem 2 and is then moved down so that the pin 7 depresses the selected stem. Downward movement of the knob also depresses a pin 12 which moves down a stem 13 having an arm 14 which starts a clockwork mechanism (not shown). The clockwork mechanism rotates a shaft 15 until a contact 16 on the shaft strikes a dog 17 on the depressed stem 2, forming the fixed contact. All the stems 2 are connected to a single terminal 18 thus giving a variable time delay in the circuit connected to the terminal.